all:
	make all -C a
	make all -C b
	make all -C c
	make all -C d
	make all -C e
	make all -C f
	make all -C g
	make all -C h

clean:
	make clean -C a
	make clean -C b
	make clean -C c
	make clean -C d
	make clean -C e
	make clean -C f
	make clean -C g
	make clean -C h
